#define TAU 6.28319


void setup() {
  Serial.begin(9600);
}

void loop() {
  static float phase0, phase1, phase2;
  phase0 += analogRead(A0) / ( TAU * 1024.);
  phase1 += analogRead(A1) / ( TAU * 1024.);
  phase2 += analogRead(A2) / ( TAU * 1024.);
  Serial.print(cos(phase0)*100. + 100 );
  Serial.print(" ");
  Serial.print(cos(phase1)*100. + 400 );
  Serial.print(" ");
  Serial.println(cos(phase2)*100. + 700);
  delay(50);
}